CN219608563U - Gas analysis system - Google Patents

Gas analysis system Download PDF

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Publication number
CN219608563U
CN219608563U CN202321200439.XU CN202321200439U CN219608563U CN 219608563 U CN219608563 U CN 219608563U CN 202321200439 U CN202321200439 U CN 202321200439U CN 219608563 U CN219608563 U CN 219608563U
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China
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gas
pipe
communicated
water
analysis
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CN202321200439.XU
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Inventor
赵敏敏
孙波
何胜
薛志鹏
徐军锋
陈浩
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Huadian Electric Power Research Institute Co Ltd
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Huadian Electric Power Research Institute Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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Abstract

The utility model relates to a gas analysis system, which comprises an analysis cabinet, wherein a gas pretreatment unit and a gas analysis unit are arranged in the analysis cabinet, and the gas pretreatment unit comprises a kerosene storage tank, a water washer, a gas-water separator, a condenser and a precise filter which are sequentially communicated; the gas collecting device further comprises a gas collecting pipe and a gas exhaust main pipe, one end of the gas collecting pipe penetrates through the analysis cabinet and is located at the outer side of the analysis cabinet, the other end of the gas collecting pipe penetrates through the outer side wall of the kerosene storage tank and is located in kerosene, the gas exhaust main pipe is located at the outer side of the analysis cabinet, and a gas outlet of the gas analysis unit is communicated with the gas exhaust main pipe. The utility model can remove a large amount of tar components, ash and impurities contained in the sampling gas, ensure that the sampling gas meets the use requirement of the gas analysis unit, ensure the monitoring accuracy and reliability of the gas analysis unit, ensure the service life of the gas analysis unit and reduce the maintenance cost.

Description

Gas analysis system
Technical Field
The utility model relates to the technical field of gas analysis and detection, in particular to a gas analysis system.
Background
The coal is coupled with biomass to generate electricity, so that the emission of pollutants and greenhouse gases in the original coal-fired power plant is reduced, biomass and coal resources are comprehensively utilized, the consumption of primary energy is gradually reduced, and the pressure of social development on energy requirements is relieved. The coal-fired coupled biomass power generation fully utilizes the advantages of high capacity and high steam parameters of the coal-fired power plant to achieve high efficiency, can enable the biomass power generation efficiency to achieve the highest level of the coal-fired power plant on the level of the larger capacity, solves the problems of biomass energy field burning, mass accumulation and the like, and promotes the adjustment of energy structures in China. The biomass coal-fired coupling power generation has good economic benefit, accords with the energy sustainable development concept, and has positive promotion effect on ecological civilization construction of China.
The gas generated by the gasifier in the existing biomass gas metering station needs to enter a gas analysis unit for detection, but the sampled gas contains a large amount of tar components, ash and impurities, and enters the gas analysis unit, so that the accuracy and reliability of monitoring of the gas analysis unit can be directly affected, the risk of polluting precise instruments is brought, and the equipment overhaul period and the service life of the gas analysis unit are shortened.
Disclosure of Invention
The utility model provides a gas analysis system, which removes a large amount of tar components, ash and impurities contained in sampled gas, ensures that the sampled gas meets the use requirement of a gas analysis unit, ensures the monitoring accuracy and reliability of the gas analysis unit, ensures the service life of the gas analysis unit and reduces the maintenance cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a gas analysis system comprises an analysis cabinet, wherein a gas pretreatment unit and a gas analysis unit are arranged in the analysis cabinet;
the gas pretreatment unit comprises a kerosene storage tank, a water washer, a gas-water separator, a condenser and a precise filter which are sequentially communicated;
the gas collecting device further comprises a gas collecting pipe and a gas exhaust main pipe, one end of the gas collecting pipe penetrates through the analysis cabinet and is located at the outer side of the analysis cabinet, the other end of the gas collecting pipe penetrates through the outer side wall of the kerosene storage tank and is located in kerosene, the gas exhaust main pipe is located at the outer side of the analysis cabinet, and a gas outlet of the gas analysis unit is communicated with the gas exhaust main pipe.
Preferably, the device further comprises a zero gas inlet pipe, a measuring range gas inlet pipe and a three-way valve, wherein one end of the zero gas inlet pipe and one end of the measuring range gas inlet pipe are positioned outside the analysis cabinet, the other end of the zero gas inlet pipe and the other end of the measuring range gas inlet pipe penetrate through the outer side wall of the analysis cabinet to be connected with the three-way valve in the analysis cabinet, a first air inlet pipe is communicated with a pipeline communicated between the condenser and the precise filter, and the first air inlet pipe is communicated with the three-way valve.
Preferably, the water scrubber further comprises a water inlet main pipe, a first sewage main pipe and a second sewage main pipe which are arranged outside the analysis cabinet, wherein the lower part of the water scrubber is provided with a water inlet, the bottom of the water scrubber is provided with a water outlet, the upper part of the water scrubber is provided with an overflow port, a water inlet pipe is communicated between the water inlet and the water inlet main pipe, the water outlet is communicated with the first sewage main pipe, an overflow pipe is communicated between the overflow port and the second sewage main pipe, and a second sewage pipe is communicated between the water outlet of the gas-water separator and the second sewage main pipe;
the water inlet pipe is provided with a first electromagnetic valve, the first drain pipe is provided with a second electromagnetic valve, the overflow pipe is communicated with a third electromagnetic valve, a second drain pipe is communicated between the water outlet of the gas-water separator and the second drain main pipe, and the second drain pipe is provided with a fourth electromagnetic valve.
Preferably, the device further comprises a compressed air inlet pipe and a compressed air discharge pipe which are arranged at the outer side of the analysis cabinet, the condenser is a vortex cooler, a second air inlet pipe is communicated between an air inlet of the vortex cooler and the compressed air inlet pipe, an exhaust pipe is communicated between an exhaust port of the vortex cooler and the compressed air discharge pipe, and a third blow-down pipe is arranged between a water outlet of the condenser and the second blow-down main pipe; and a fifth electromagnetic valve is arranged on the second air inlet pipe, and a sixth electromagnetic valve is arranged on the third blow-down pipe.
Preferably, the gas-water separator further comprises a bypass pipe, wherein the pipeline at the gas outlet side of the gas-water separator is provided with a gas pump, the pipeline at the gas outlet side of the gas pump is communicated with one end of the bypass pipe, and the other end of the bypass pipe is communicated with the exhaust manifold through the analysis cabinet.
Preferably, the gas-water separator has a filtration accuracy of 5 μm and the fine filter has a filtration accuracy of 0.1 μm.
Compared with the prior art, the utility model has the beneficial effects that:
the sample gas is firstly conveyed to the bottom of the kerosene storage tank through the sampling pipe, most of tar is separated from the sample gas, meanwhile dust carried in the sample gas is also separated, then the sample gas is conveyed to the bottom of the water washer, the tar is further dissolved, the dust is separated, the sample gas is primarily purified, the content of the tar dust is obviously reduced, meanwhile, the components to be detected of the sample gas are completely reserved, in the further purification, a gas-water separator is adopted to filter the sample gas and separate liquid water, then the sample gas is condensed after entering the condenser, and finally a precise filter is adopted, so that a large amount of tar components, ash and impurities contained in the sample gas are removed, the sample gas is ensured to meet the use requirement of the gas analysis unit, the accuracy and the reliability of monitoring of the gas analysis unit are ensured, the service life of the gas analysis unit is ensured, and the maintenance cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a system according to an embodiment of the present utility model.
Reference numerals illustrate:
1. analyzing the cabinet; 2. a kerosene storage tank; 3. a water scrubber; 4. a gas-water separator; 5. a condenser; 6. a precision filter; 7. a gas analysis unit; 8. taking an air pipe; 9. a first tube; 10. a second tube; 11. a third tube; 12. a fourth pipe; 13. an exhaust manifold; 14. zero gas inlet pipe; 15. a range gas inlet pipe; 16. a water inlet pipe; 17. a first drain pipe; 18. an overflow pipe; 19. a second drain pipe; 20. a bypass tube; 21. an air pump; 22. a second air inlet pipe; 23. an exhaust pipe; 24. a third drain pipe; 25. a water inlet main pipe; 26. a first blow-down header; 27. a second sewer main; 28. a compressed air inlet pipe; 29. a compressed air discharge pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the embodiment of the utility model provides a gas analysis system, which comprises an analysis cabinet 1, wherein a gas pretreatment unit and a gas analysis unit 7 are arranged in the analysis cabinet 1, and the gas pretreatment unit comprises a kerosene storage tank 2, a water scrubber 3, a gas-water separator 4, a condenser 5 and a precise filter 6 which are sequentially communicated; the device comprises a kerosene storage tank 2, a water scrubber 3, a gas taking pipe 8, a water scrubber 3 and a water separator, wherein the gas taking pipe 8 is arranged outside the analysis cabinet 1, one end of the gas taking pipe 8 passes through the analysis cabinet 1, the other end passes through the outer side wall of the kerosene storage tank 2 and is positioned in kerosene, sample gas enters the kerosene storage tank 2 from the gas taking pipe 8, then passes through a gas outlet above the kerosene storage tank 2 and enters a first pipe 9 communicated between the kerosene storage tank 2 and the water scrubber 3, at this time, most of tar is separated from the sample gas, dust carried in the sample gas is separated, then enters the water scrubber 3 through the first pipe 9, the second end of the first pipe 9 passes through a gas inlet of the water scrubber 3 until the bottom of the water scrubber 3 is further dissolved, the dust is separated, and then the sample gas is subjected to preliminary purification, and the content of tar dust is obviously reduced; then the sample gas enters a second pipe 10 between the water scrubber 3 and the gas-water separator 4, enters the gas-water separator 4 through the second pipe 10, filters the sample gas and separates liquid water, so that the moisture in the sample gas meets the detection requirement, and the gas-water separation is carried out immediately after the sample gas is separated from the liquid of the pre-treatment gas because the sample gas in the subsequent process does not enter the liquid any more, so that the gas is prevented from containing a large amount of water vapor to influence the treatment of the subsequent gas; then the sample gas enters a third pipe 11 between the gas-water separator 4 and the condenser 5, enters the condenser 5 through the third pipe 11, and is condensed until the gas analysis unit 7 detects the required temperature; then enters a fourth pipe 12 between the condenser 5 and the precise filter 6, and enters the precise filter 6 through the fourth pipe 12 to carry out secondary filtration, so that tiny impurities are removed, a large amount of tar components, ash and impurities contained in the sampled gas are removed, the sampled gas is ensured to meet the use requirement of the gas analysis unit 7, the monitoring accuracy and reliability of the gas analysis unit 7 are ensured, the service life of the gas analysis unit 7 is ensured, and the maintenance cost is reduced; specifically, the gas-water separator 4 has a filtration accuracy of 5 μm and the fine filter 6 has a filtration accuracy of 0.1 μm, and the gas analysis unit 7 may be a commercially available infrared gas analyzer.
Specifically, the device also comprises an exhaust manifold 13, wherein the exhaust manifold 13 is positioned at the outer side of the analysis cabinet 1, the air outlet of the gas analysis unit 7 is communicated with the exhaust manifold 13, and the sample gas detected by the gas analysis unit 7 is discharged into the exhaust manifold 13 to be discharged to a designated position for treatment, so that the sample gas is prevented from being discharged into the outside air to pollute the environment.
Preferably, the zero gas inlet pipe 14, the range gas inlet pipe 15 and the three-way valve are further included, one end of the zero gas inlet pipe 14 and one end of the range gas inlet pipe 15 are located at the outer side of the analysis cabinet 1, the other end of the zero gas inlet pipe passes through the outer side wall of the analysis cabinet 1 and is connected with the three-way valve in the analysis cabinet, a first air inlet pipe is communicated with a pipeline communicated between the condenser 5 and the precision filter 6, the first air inlet pipe is communicated with the three-way valve, zero gas and range gas enter the gas analysis unit 7 from the zero gas inlet pipe 14 and the range gas inlet pipe 15 in sequence to carry out zero setting and range adjusting operation, before the zero gas and the range adjusting operation, the zero gas and the range gas need to enter the precision filter 6 for filtration, the zero gas and the range gas are prevented from being mixed with large-particle impurities in the gas analysis unit 7, zero setting and range adjusting of the gas analysis unit 7 are affected, and the accuracy of a zero setting result and a range adjusting result of the gas analysis unit 7 is ensured.
Preferably, the water-washing device also comprises a water inlet main pipe 25, a first sewage main pipe 26 and a second sewage main pipe 27 which are arranged on the outer side of the analysis cabinet 1, wherein the lower part of the water-washing device 3 is provided with a water inlet, the bottom is provided with a water outlet, and the upper part is provided with an overflow port; a water inlet pipe 16 is communicated between the water inlet and a water inlet main pipe 25, a first blow-down pipe 17 is communicated between the water outlet and a first blow-down main pipe 26, and an overflow pipe 18 is communicated between the first overflow port and a second blow-down main pipe 27; in use, the water inlet manifold 25 is fed into the water inlet pipe 16 and then into the water scrubber 3, the formed sewage is discharged from the first sewage discharge pipe 17 into the first sewage discharge manifold 26, and the overflowed water enters the second sewage discharge manifold 27 through the overflow pipe 18 to be pinched and discharged.
Preferably, the device further comprises a compressed air inlet pipe 28 and a compressed air discharge pipe 29 which are arranged outside the analysis cabinet 1, the condenser 5 is a vortex tube cooler, the refrigeration effect of the vortex tube cooler is good, the temperature of the sample air can be reduced to be single, the dewatering effect is good, in particular, a second air inlet pipe 22 is communicated between an air inlet of the vortex cooler and the compressed air inlet pipe 28 and is used for air intake, an exhaust pipe 23 is communicated between an exhaust port of the vortex cooler and the compressed air discharge pipe 29 and is used for exhaust, and a third blow-down pipe 24 is arranged between a water outlet of the condenser 5 and the second blow-down main pipe 27 and is used for water discharge.
Specifically, the first electromagnetic valve is arranged on the water inlet pipe 16, the second electromagnetic valve is arranged on the drain pipe, the third electromagnetic valve is communicated on the overflow pipe 18, the second drain pipe 19 is communicated between the water outlet of the gas-water separator 4 and the second drain main pipe 27, the fourth electromagnetic valve is arranged on the second drain pipe 19, the fifth electromagnetic valve is arranged on the second air inlet pipe 22, the sixth electromagnetic valve is arranged on the third drain pipe 24, the seventh electromagnetic valve is arranged on the air taking pipe 8, the eighth electromagnetic valve is arranged on the second pipe 10, the ninth electromagnetic valve is arranged on the fourth pipe 12, and the electromagnetic valves are arranged, so that the control of a sample gas treatment pipeline is facilitated and more convenience is realized.
Preferably, the device further comprises a bypass pipe 20, a control valve is arranged on the bypass pipe 20, an air pump 21 is arranged on a pipeline at the air outlet side of the air-water separator 4, the pipeline at the air outlet side of the air pump 21 is communicated with one end of the bypass pipe 20, the other end of the bypass pipe 20 is communicated with the exhaust manifold 13, when equipment is maintained or stopped, the control valve is opened, the air pump 21 is opened, meanwhile, a ninth electromagnetic valve on the fourth pipe 12 is closed, then a seventh electromagnetic valve on the air taking pipe 8 and an eighth electromagnetic valve on the second pipe 10 are opened, sampling gas in the pipeline is discharged, a large amount of sampling gas is not contained in the pipeline any more, and the condition that the gas leaks to pollute the environment is avoided.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (6)

1. The gas analysis system is characterized by comprising an analysis cabinet, wherein a gas pretreatment unit and a gas analysis unit are arranged in the analysis cabinet;
the gas pretreatment unit comprises a kerosene storage tank, a water washer, a gas-water separator, a condenser and a precise filter which are sequentially communicated;
the gas collecting device comprises a gas collecting pipe, a gas collecting pipe and a gas exhaust main pipe, wherein one end of the gas collecting pipe penetrates through the analysis cabinet and is located at the outer side of the analysis cabinet, the other end of the gas collecting pipe penetrates through the outer side wall of the kerosene storage tank and is located in kerosene, the gas exhaust main pipe is located at the outer side of the analysis cabinet, and a gas outlet of the gas analysis unit is communicated with the gas exhaust main pipe.
2. The gas analysis system according to claim 1, further comprising a zero gas inlet pipe, a range gas inlet pipe and a three-way valve, wherein one end of the zero gas inlet pipe and one end of the range gas inlet pipe are positioned outside the analysis cabinet, the other end of the zero gas inlet pipe and the other end of the range gas inlet pipe penetrate through the outer side wall of the analysis cabinet to be connected with the three-way valve therein, a first gas inlet pipe is communicated with a pipeline communicated between the condenser and the precision filter, and the first gas inlet pipe is communicated with the three-way valve.
3. The gas analysis system according to claim 1, further comprising a water inlet manifold, a first blow-down manifold and a second blow-down manifold which are arranged outside the analysis cabinet, wherein a water inlet is arranged at the lower part of the water scrubber, a water outlet is arranged at the bottom of the water scrubber, an overflow port is arranged at the upper part of the water scrubber, a water inlet pipe is communicated between the water inlet and the water inlet manifold, a first blow-down pipe is communicated between the water outlet and the first blow-down manifold, an overflow pipe is communicated between the overflow port and the second blow-down manifold, and a second blow-down pipe is communicated between the water outlet of the gas-water separator and the second blow-down manifold;
the water inlet pipe is provided with a first electromagnetic valve, the first drain pipe is provided with a second electromagnetic valve, the overflow pipe is communicated with a third electromagnetic valve, a second drain pipe is communicated between the water outlet of the gas-water separator and the second drain main pipe, and the second drain pipe is provided with a fourth electromagnetic valve.
4. The gas analysis system according to claim 3, further comprising a compressed air inlet pipe and a compressed air discharge pipe arranged outside the analysis cabinet, wherein the condenser is a vortex cooler, a second air inlet pipe is communicated between an air inlet of the vortex cooler and the compressed air inlet pipe, an exhaust pipe is communicated between an exhaust port of the vortex cooler and the compressed air discharge pipe, and a third drain pipe is arranged between a drain port of the condenser and the second drain main pipe; the second air inlet pipe is provided with a fifth electromagnetic valve, and the third sewage draining pipe is provided with a sixth electromagnetic valve.
5. The gas analysis system of claim 1, further comprising a bypass pipe, wherein the gas-water separator gas outlet side conduit is provided with a gas pump, wherein the gas pump gas outlet side conduit communicates with one end of the bypass pipe, and wherein the other end of the bypass pipe communicates with the exhaust manifold through the analysis cabinet.
6. The gas analysis system according to claim 1, wherein the gas-water separator has a filtration accuracy of 5 μm and the fine filter has a filtration accuracy of 0.1 μm.
CN202321200439.XU 2023-05-15 2023-05-15 Gas analysis system Active CN219608563U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321200439.XU CN219608563U (en) 2023-05-15 2023-05-15 Gas analysis system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321200439.XU CN219608563U (en) 2023-05-15 2023-05-15 Gas analysis system

Publications (1)

Publication Number Publication Date
CN219608563U true CN219608563U (en) 2023-08-29

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ID=87749648

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321200439.XU Active CN219608563U (en) 2023-05-15 2023-05-15 Gas analysis system

Country Status (1)

Country Link
CN (1) CN219608563U (en)

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